Synthesis and characterization of rutile TiO₂ nanowhiskers

Abstract

Rutile TiO2 nanowhiskers have been synthesized by annealing a precursor powder in which NaCl and Ti(OH)4 particles were homogeneously mixed. The precursor powder was prepared by mixing three kinds of inverse microemulsions (μE) containing TiCl4 aqueous solution, ammonia, and NaCl aqueous solution, respectively, followed by washing with acetone. Annealing temperature and packing density of Ti(OH)4 in the precursor powder influenced the formation of rutile nanowhiskers. The optimum temperature was 750 °C. TiO2 nanowhiskers obtained by annealing a precursor powder in which the molar ratio of sodium to titanium was 400 at 750 °C for 2 h had diameters of 10–50 nm and lengths of several micrometers. They were straight rods with square cross sections, and the side surfaces were composed of four equivalent {110} planes.

In situ polymerized nanocomposites of poly(butylene succinate)/Tio2 nanofibers: molecular weight, morphology, and thermal properties

“…However, the surface treatment of TiO 2 is necessary to improve the compatibility and dispersion in polymer matrix that limits its wide application. In recent researches, TiO 2 nanofibers could be synthesized by several different methods 15–18. With large quantities of hydroxyl groups on surface, TiO 2 nanofibers can more easily form network structures through direct interaction and chains grafting to the polymer matrix 19.…”

Untitled

“…This characteristic of the tissue is adjusted through generating nano whiskers [49]. Nano whiskers are hydro-carbons and onethousandth of the dimension of a conventional fiber made of cotton which is adjoined to the fabric.…”

Nanotextiles- A Broader Perspective

“…Water-repellent property Nanowhiskers: Nanowhiskers [40] are hydrocarbons and1/1000 of the size of a typical cotton fiber that is added to the fabric to create a peach fuzz effect without lowering the strength of cotton. The spaces between the whiskers on the fabric are smaller than the typical drop of water, but still larger than water molecules; water thus remains on the top of the whiskers and above the surface of the fabric [41].…”